apps: Remove InitForTest.
apps: Remove InitForTest.

We've decided that Init is good enough.

Change-Id: Ia2d95fe25702dbe1b7a444d95bebdaa12d8edd75

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref